As a father of 3. a 12 year old a 2 year old and a 1 year old. I can totally understand your frustration at times. parenting can be stressful,what I find that helps me is to step back and look at each situation. take a deep breath and clear your mind(not always easy to do). If u are able to walk to another room for a quick break,just make sure the kids r okay first. put on their fav movie or something to keep em entertained for a minute and collect your thoughts. go outside smoke a cig or something. work on a hobby. there are many stress reducers out there. heck keep a couple j's rolled up and stick em somewhere and take a toke or two when u really need it.or get or make some edibles like sticky suggested. they will last longer just be aware of how you are feeling you dont wanna not be able to help the kids if they need it.